Optical deflecting device
AssigneeFuji Xerox Co., Ltd.
InventorKeiichi Nashimoto
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Abstract
An optical deflecting device of optical waveguide type comprising: a conductive or semi-conductive monocrystalline substrate, or a monocrystalline substrate having a conductive or semi-conductive, epitaxial or oriented film provided on the surface thereof; an optical waveguide comprising an epitaxial or oriented ferroelectric film provided on the surface of the monocrystalline substrate; and an upper electrode disposed on top of the optical waveguide. In the optical deflecting device, the conductive or semi-conductive monocrystalline substrate, or the conductive or semi-conductive, epitaxial or oriented film provided on the monocrystalline substrate acts as a lower electrode. The laser beam introduced into the optical waveguide is deflected by applying a voltage between the upper electrode and the lower electrode.
Claims20
An optical deflecting device comprising:
- a conductive or semi-conductive monocrystalline substrate comprising a surface;
- an optical waveguide comprising an epitaxial or oriented ferroelectric film provided on the surface of the monocrystalline substrate, the optical waveguide comprising a surface;
- and
- an upper electrode disposed on the surface of the optical waveguide;
- wherein the optical waveguide has at least one prism-shaped polarization domain reversal area having two sides which are not parallel to each other, and the at least one prism-shaped polarization domain reversal area is made to have a different refractive index from that of the other area of the optical waveguide by applying a voltage between the upper electrode and the monocrystalline substrate.
An optical deflecting device comprising:
- a monocrystalline substrate having thereon a conductive or semi-conductive, epitaxial or oriented film comprising a surface;
- an optical waveguide comprising an epitaxial or oriented ferroelectric film provided on the surface of the conductive or semi-conductive, epitaxial or oriented film, the optical waveguide comprising a surface;
- and
- an upper electrode disposed on the surface of the optical waveguide;
- wherein the optical waveguide has at least one prism-shaped polarization domain reversal area having two sides which are not parallel to each other, and the at least one prism-shaped polarization domain reversal area is made to have a different refractive index from that of the other area of the optical waveguide by applying a voltage between the upper electrode and the monocrystalline substrate.
Dependencies are inferred from the claim text.